Hydrozoa - Sphaeractinida

Parent taxon: Hydrozoa according to J. J., Jr. Sepkoski 2002

Sister taxa: Actinulida, Delheidia, Fistulella, Graptogeitonia, Hydrocorallinae, Hydroida, Kerunia, Lemniscaterina, Likinia, Limnomedusae, Milleporidae, Milleporina, Narcomedusae, Nigriporellidae, Plumalina, Rhizostromella, Roseoporella, Siphonophorida, Spongiomorphida, Stoliczkiella, Stylasterina, Trachylinida, Tubulariae, Tubuloparietes

Subtaxa: Globostroma Paronaria

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Ecology: stationary epifaunal carnivore-suspension feeder

Distribution: there are no occurrences of Sphaeractinida in the database

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